package _test;

public class IntegerTest {
    public static void main(String[] args) {
        Integer integer = new Integer(0);
        System.out.println(integer.toString());
        integer++;
        System.out.println(integer);
        increase(integer);
        System.out.println(integer);
        int i=0;
        for(;i<0;i++){
            System.out.println("执行了一次");
        }
        int[] array = new int[0];
        for(i=0;i<array.length;i++){
            System.out.println("array["+i+"]="+i);
        }
    }
    
    public static void increase(Integer integer){
        integer+=5;
        System.out.println("in increase():"+integer);
    }
}
